Results 11 to 20 of about 160 (136)

Disentangling the effects of multifunctional forestry practices on the abundances of birds and their invertebrate prey. [PDF]

Ecol Appl
Abstract European forests are increasingly managed to harmonize production goals with biodiversity conservation, through practices such as retention and close‐to‐nature forestry. Forest birds may benefit from these practices, but it remains unclear how the effects of different management practices compare, and whether responses to management are driven
Cordeiro Pereira JM, Klingenfuß S, Basile M, Frey J, Mikusiński G, Storch I.   +5 more
europepmc   +2 more sources

Effects of Linear Openings in Forests on Temperate Bird Communities. [PDF]

Ecol Evol
Surveyed bird communities across a gradient of canopy openings (forest interior, paths, roads, and edges) in the Black Forest, Germany. Despite structural differences, bird communities along narrow paths and roads resembled forest interiors more than edges, suggesting these linear features do not function as distinct ecological habitats.
Yapu-Alcazar M, Benerradi R, Wohlwend M, Mikusiński G, Storch I, Bhardwaj M.   +5 more
europepmc   +2 more sources

Investigating the Trend of the Great Slaty Woodpecker (<i>Mulleripicus pulverulentus</i>) Population Status in Western Nepal. [PDF]

Ecol Evol
The study provides the potential habitat distribution of Great Slaty Woodpecker. Furthermore, the study examines the relationship between the occurrence of the species and tree size, specifically DBH. ABSTRACT The Great Slaty Woodpecker (Mulleripicus pulverulentus) has experienced a rapid population decline due to the loss of primary forest habitats ...
Thakuri DC, Basnet H, Poudyal LP, Aryal PC.   +3 more
europepmc   +2 more sources

Opportunities, research gaps, and risks in allogenic ecosystem engineer mimicry. [PDF]

Conserv Biol
Abstract In an age of anthropogenically driven species loss and increasingly novel ecosystems, ecosystem engineer restoration is a process‐based approach to supporting ecosystem function. Many ecosystem engineers have low or declining population sizes.
Goss B, Baskett ML, Lusardi R.
europepmc   +2 more sources

A direct extension of Meller's calculus

International Journal of Mathematics and Mathematical Sciences, 1982
This paper extends the operational calculus of Meller for the operator Bα=t−αddttα+1ddt to the case where α∈(0,∞). The development is àla Mikusinski calculus and uses Meller's convolution process with a fractional derivative operator.
E. L. Koh
doaj   +1 more source

Strengthening the Network of High Conservation Value Forests in Boreal Landscapes

Frontiers in Ecology and Evolution, 2021
The natural and old-growth forests and their associated biodiversity continues to fade worldwide due to anthropogenic impact in various forms. The boreal forests in Fennoscandia have been subject to intensive clearfelling forestry since the middle of ...
Grzegorz Mikusiński, Grzegorz Mikusiński, Ewa H. Orlikowska, Jakub W. Bubnicki, Bengt Gunnar Jonsson, Bengt Gunnar Jonsson, Johan Svensson   +6 more
doaj   +1 more source

Essay on Fractional Riemann-Liouville Integral Operator versus Mikusinski’s [PDF]

Mathematical Problems in Engineering, 2013
This paper presents the representation of the fractional Riemann-Liouville integral by using the Mikusinski operators. The Mikusinski operators discussed in the paper may yet provide a new view to describe and study the fractional Riemann-Liouville integral operator.
Li, Ming, Zhao, Wei
openaire   +2 more sources

Fractional Differential Equations with the General Fractional Derivatives of Arbitrary Order in the Riemann–Liouville Sense

Mathematics, 2022
In this paper, we first consider the general fractional derivatives of arbitrary order defined in the Riemann–Liouville sense. In particular, we deduce an explicit form of their null space and prove the second fundamental theorem of fractional calculus ...
Yuri Luchko
doaj   +1 more source

Integrals of operator-valued functions

International Journal of Mathematics and Mathematical Sciences, 1988
Mikusinski-type expansions of operator-valued functions are discussed in some detail. As a natural part of the development, a “kernel” concept for operators is proposed and an elaborate system of convolution quotients in one and two variables is obtained.
Raimond A. Struble
doaj   +1 more source

Diversity of Bivariate Concordance Measures

Mathematics, 2022
We revisit the axioms of Scarsini, defining bivariate concordance measures for a pair of continuous random variables (X,Y); such measures can be understood as functions of the bivariate copula C associated with (X,Y).
Martynas Manstavičius
doaj   +1 more source